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postgres/src/backend/parser
History
Tom Lane 4a5f38c4e6
Code review for holdable-cursors patch. Fix error recovery, memory 		23 years ago
..
.cvsignore
…
Makefile Get rid of last few vestiges of parsetree dependency on grammar token 23 years ago
README
…
analyze.c Code review for holdable-cursors patch. Fix error recovery, memory 23 years ago
gram.y Code review for holdable-cursors patch. Fix error recovery, memory 23 years ago
keywords.c First phase of work on array improvements. ARRAY[x,y,z] constructor 23 years ago
parse_agg.c Repair incorrect checking of grouped/ungrouped variables in the presence 23 years ago
parse_clause.c Adjust subquery qual pushdown rules to be more forgiving: if a qual 23 years ago
parse_coerce.c Remove premature attempt to constant-fold type coercion expressions. 23 years ago
parse_expr.c First phase of work on array improvements. ARRAY[x,y,z] constructor 23 years ago
parse_func.c Infrastructure for upgraded error reporting mechanism. elog.c is 23 years ago
parse_node.c First phase of work on array improvements. ARRAY[x,y,z] constructor 23 years ago
parse_oper.c First phase of work on array improvements. ARRAY[x,y,z] constructor 23 years ago
parse_relation.c Phase 2 of read-only-plans project: restructure expression-tree nodes 23 years ago
parse_target.c First phase of work on array improvements. ARRAY[x,y,z] constructor 23 years ago
parse_type.c Put back encoding-conversion step in processing of incoming queries; 23 years ago
parser.c Put back encoding-conversion step in processing of incoming queries; 23 years ago
scan.l Put back encoding-conversion step in processing of incoming queries; 23 years ago
scansup.c Be careful to include postgres.h *before* any system headers, to ensure 24 years ago

README 

This directory does more than tokenize and parse SQL queries.  It also
creates Query structures for the various complex queries that is passed
to the optimizer and then executor.

parser.c	things start here
scan.l		break query into tokens
scansup.c	handle escapes in input
keywords.c	turn keywords into specific tokens
gram.y		parse the tokens and fill query-type-specific structures
analyze.c	handle post-parse processing for each query type
parse_clause.c	handle clauses like WHERE, ORDER BY, GROUP BY, ...
parse_coerce.c	used for coercing expressions of different types
parse_expr.c	handle expressions like col, col + 3, x = 3 or x = 4
parse_oper.c	handle operations in expressions
parse_agg.c	handle aggregates, like SUM(col1),  AVG(col2), ...
parse_func.c	handle functions, table.column and column identifiers
parse_node.c	create nodes for various structures
parse_target.c	handle the result list of the query
parse_relation.c support routines for tables and column handling
parse_type.c	support routines for type handling